Today, the use of posterior stabilized implants has begun to become widely. Therefore, it is important to compare this type of prosthesis with existing knee prosthesis. In this study, the wear and validation of the posterior stabilized total knee prosthesis with knee simulator was evaluated. The test was carried out to determine the validation of the used total knee prosthesis. Size 3 posterior stabilized total knee joint prosthesis were used as validation test samples. When the images obtained were examined, the types of wear occurring in knee prosthesis were encountered in the literature. In addition, the results showed that the efficiency of the posterior stabilized total knee prosthesis was higher.